#eg.1
list1=['name','age','gender']
list2=['pan',20,'male']
dict1={list1[i]:list2[i] for i in range(len(list1))}
print(dict1)
#eg.2
dict2={i:i**2 for i in range(1,6)}
print(dict2)

#提取字典中的目标数据
counts={'MBP':200,'HP':100,'LENOVO':188,'DELL':299}
result1={i:j for i,j in counts.items() if j>150 }
print(result1)